PAGE 1
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PAGE 2
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PAGE 3
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PAGE 4
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PAGE 5
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PAGE 6
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PAGE 7
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PAGE 8
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PAGE 9
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SIGNATURE CHARLES C. MCCOBB, JR.
TITLE V.P. AND C.F.O.
EXHIBIT INDEX TO FORM N-SAR
OF MASSMUTUAL CORPORATE INVESTORS
FOR ANNUAL PERIOD ENDED DECEMBER 31, 2005
EXHIBIT NO. DESCRIPTION
77B Accountant's Report on Internal Controls
77C Matters Submitted to Vote of Security Holders
77E Legal Proceedings
77Q1(e) Copies of any New or Amended Registrant Investment Advisory
Contracts
77Q2 Information Called for by Item 405 of Regulation S-k